It's a day late, but we wanted to wish a Happy Birthday to one of America's great writers of silly songs, Tom Lehrer. On the zillion-to-three chance that he ever sees this page, we'd like to remind him that the world abounds in people who know all his songs by heart, and can and will sing them at the slightest provocation. Legend has it that he stopped performing when Henry Kissinger won the Nobel Peace Prize, and legend is untrue. He actually returned to the world of mathematics long before then — though he did say that, with that award, political satire became obsolete. Either way, we miss his voice and salute him on his 75th birthday. (That means he's 113 in Base 8. Base 8 is just like Base 10…if you're missing two fingers.)